linux-kernel - [PATCH] pwm: mxs: use devm_platform_ioremap

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Date:   Thu, 18 Jul 2019 09:32:05 +0800
From:   Anson.Huang@....com
To:     thierry.reding@...il.com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-pwm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH] pwm: mxs: use devm_platform_ioremap_resource() to simplify code

From: Anson Huang <Anson.Huang@....com>

Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 drivers/pwm/pwm-mxs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 04c0f6b..b14376b 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -126,15 +126,13 @@ static int mxs_pwm_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct mxs_pwm_chip *mxs;
-	struct resource *res;
 	int ret;
 
 	mxs = devm_kzalloc(&pdev->dev, sizeof(*mxs), GFP_KERNEL);
 	if (!mxs)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mxs->base = devm_ioremap_resource(&pdev->dev, res);
+	mxs->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mxs->base))
 		return PTR_ERR(mxs->base);
 
-- 
2.7.4